<nz-layout class="right-control">
  <nz-header class="header-wrapper">
    <app-header></app-header>
  </nz-header>
  <nz-content class="list-wrapper">
    <app-todo></app-todo>
  </nz-content>
  <div class="quick-add-wrapper" [class.center]="todoList.todos.length === 0">
    <app-quick-add (add)="add($event)"></app-quick-add>
  </div>
</nz-layout>
